Window structure



Rt Mn G. M. WALKUP WINDOW STRHIJCTURE Filed May 24, 1926 3 Sheets-Sheetl GEORGEM Marl/P 3/ April 5. 1927.

April 5,1927. G. M. WALKUP WINDOW STRUCTURE Filed May 24, 1926 sSheets-Sheet 2 P WW E um Mm W a v MW L m? Q E 0 6 WU cleaning andrepairs.

Patented Apr. 5, 1927.

UNITED STATES PATENT OFFICE.

GEORGE M. WALKUP, 0F MINNEAPOLIS, MINNESOTA.

WINDOW STRUCTURE.

Application filed May 24,

. This invention relates to improvements in window structures,generally, and particularly to such a structure having a sashcarryingframe demountably supported therein, whereby the usual sash may readilybe removed from the structure to facilitate An object of the inventionis to provide a window structure comprising a stationary frame, adaptedto be mounted in a wall opening, and said frame having an inwardlyfacing seat'provided adjacent the outer portion thereof adapted todemountably receive a storm sash or screen, mounted, therein from theinterior of the building.

A further object of the invention is to provide such a structurecomprising a stationary frame having casings secured to the exteriorlydisposed edges thereof and overhanging such edges to provide a seat fora storm sash, and a sash-carrying frame demountably supported in saidstationary frame and adapted to engage the storm sash to secure it inits seat in the stationary frame.

A further object is to provide. such a structure having a sash-carryingframe demountably supported therein, such frame being provided withasash-balancing mechanism having connections with the sash, and thesash-carrying frame, including the'sash and the sash-balancingmechanism, being removable as aunit from the structure. a A furtherobject is to provide. a stationary window frame adapted to demountablyreceive a sash-carrying frame comprising side grooved jambs and a headjamb-secured together as a frame, and springactuated sash-balancingdrums mounted upon the head jamb and having flexible connections withthesash slidably mounted in the side jambs, and means being provided forlocking the sash-balai'icing drums against movement when the sash areremoved from the sash-carrying frame.

A further object is to provide a window structure comprising incombination, a stationary frame having a seat in the outer portionthereof adapted to demountably receive a storm sash, and a sash-carryingframe removably mounted in said stationary frame, and the lower innerportions of the sash-carrying frame being hinged to the major portionthereof whereby the sash may readily be removed from the sash-carryingframe without the necessity of. removing 1926. Serial No. 111,286.

the sash-carrying frame from the stationary frame. 7

A further object is to provide such a window structure of simple andinexpensive construction, which may be assembled as a unit and mountedin the usual wall opening as an ordinary window frame, thereby provldmgsuch a structure well adapted for use in the building art. 7

Other objects of the invention will appear from the followingdescription and the accompanying drawings, and will be pointed out inthe annexed claims. y

In the drawings there, has been disclosed a structure designed to carryout the various objects of the invention, but it is to be understoodthat the invention is not confined to the exact features shown, asvarious changes may be made within the scope of the claims which follow.

In the accompanying drawings: Y

Figure 1 is a vertical, sectional view of the improved window structureshowing it mountedin a wall opening;

Figure 2 is an inside view of Figure 1; j

Figure 3 is a view similar to Figure 1, showing the lower portions ofthe sash-carrying frame swung outwardly to permit the removal of thesash; we

Figure 4 is a view similar to Figure 3 with the sash removed from thesash-can rying frame; i v

Figure 5 is a sectional view of the sashcarrying frame removed from thestationary :frame; 5

Figure 6 is asectional view of the stationary frame with thesash-carrying frame removed therefrom, showing the method of mounting.the storm sash therein;

Figure 7 is a sectional plan view on the line 7-7 of Figure 1; i

Figure 8 is a top view of the structure, showing the. sash-balancing.mechanism mounted thereon;

Figure; .9 is a detailed sectional view on the line 99 of Figure 8,showing the connections between the sash and thesash-balancing-mechanism; and 7 Figures 10 and 11 are detailed sectionalviews of the lines 10-10 and 11--11 respectively, of Figure 8, showingthe means pro- ,vided for locking the sash-balancing mechanism againstmovement when the sash-carrymg frame 15 removed from the statlonaryframe.

The novel Window structure featured this invention includes a stationaryframe comprising the side jambs 12, sill 13, and the upper cross member14:, suitably secured to the jambs 12, to provide a rectangular frameadapted to be mounted in the usual wall opening 20, as shown in Figure7. Gasings 15 are secured to the outer edges of the side jambs 12, andare adapted to overhang the inner faces thereof, as particularly shownin Figure 7, to provide a seat 16 adapted to demountably receive a stormsash or screen 17, mounted therein from the interior of the building, asshown in dotted lines in Figure 6. A casing board 18 is secured to theupper cross member 14 of the stationary frame, and likewise overhangsthe lower face thereof to provide a seat at the upper portion of theframe adapted to receive the storm sash, as shown in the various figuresof the drawings.

A feature of this invention resides in the means provided for supportingthe usual sash in the stationary frame. Such means consists of asash-carrying frame demountably supported within the stationary frame.This sash-carrying frame comprises grooved side jambs 19, having theirupper ends secured together by means of a similarly grooved head jamb21. The usual upper and lower sash 22 and 23 are slidably mounted in thegrooved or rabbeted jambs 19, as particularly shown in Figures 1, 3 and7. The lower ends of the grooved side jambs 19 are preferably inclinedand adapted to be seated upon correspondingly inclined blocks 2%,forming in effect, continuations of the jambs 19, when mounted in thestationary frame. The blocks 24- may be suitably secured to the mainjambs 12 of the stationary frame or to the sill 13.

The lower, inner portions 25 of the grooved jambs 19 are pivotallyconnected to the jambs b 1 means of hin 'es 26 shown )artieularl in .l bv Figures 3, 4 and 5. These lower hinged sections'25 are provided withgrooves 27, adapted to be aligned with the grooves 28 in the jambs 19,when the hinged sections 25 are in normal position, as shown in Figures1 and 1. By thus pivotally connecting the sec ions 25 to the jambs 19,the sash 23 may readily and quickly be removed from the sash frame byswinging the sections 25 inwardly to the positions shown in full anddotted lines in Figure 3, after which the sash may be removed f-rom thesash-carrying frame. suitable fastening means, such as screws 29 and 31,are provided to secure the sash-carrying frame, including the hingedsections 25, to the stationary frame. (See Figures 1 and Means areprovided at the upper portion of the sash-carrying frame forcounter-balancing the weight of the sash. Such means preferably consistof suitable flanged drums 32 and 33, rotatively mounted upon the headdew frames.

jamb 21, and having flexible connections 34 and 35 connecting them,respectively, with the outer sash 22 and inner sash 23, by such means ashooks Each pair of drums and 33 are connected together by means of crossmembers 37, each having a torsion spring 38 mounted therein, as shown inFigure 9. Each torsion spring 38 has one end secured to a member 37 andits other end scoured to one of the brackets 39 supporting the drums 32and These springs are constantly under tension and tend to rotate thedrums 32 and 33 in a direction to lift the sash 22 and 23. The tensionof the springs 38 is sufficient to substantially counterbalance theweight of the sash.

Means are provided for locking the drums 32 and 33 against movement whenthe sash are to be removed from the sash-carrying frame for suchpurposes as cleaning or repairs. Such means preferably consist ofthreaded stems l1 and 12, rotat'ively mounted in brackets 13, secured tothe upper portion of the head jamb 21. Angle brackets 14- and -15 arereceived in threaded engagement, re-

spectively, ith the threaded stems 41 and 12, and are adapted to bemoved into and out of engagement with the cross members 37 by rotationof the stems 41 and 42. (See Figures 10 and 11.) The portions of theangle brackets 4 1 and 15 engaging the members 37 are preferablycorrugated or rouglr cued, to provide a gripping surface adapted toarrest the movement of the members 3?, when the brackets are moved intoengagement therewith, and the sash are removed from the flexibleconnections 34 and Each threaded stem is terminally squared to receive asuitable key member (not shown) inserted through openings 16, providedin a finishing plate 47, secured to the inner face of the inside topcasing 18, as shown particularly in Figure 2. Inner side casings 49 mayalso be secured to the inner edges of the main jambs 12 to provide afinished appearance of the frame within the building, as is customary inwindow structures of ordinary construction.

The construction of this novel window structure is such that. it may bemounted in wall openings of ordinary size, such are commonly providedfor ordinary win- The stat" ;nary frame. including the outer casings 15and 18 and also the demeuntable saslrcarrying frame comprising thegrooved jambs 1) and 21, may be assembled as a unit and mounted in thewall opening as an ordinary window frame. By removing the sash-carryingframe from the stationary frame, the sash may readily be mounted thereinand connected to the sashbalancing mechanism at the upper portionthereof, after which the sash-carrrying frame, with the sash mountedtherein, may be mounted as a unit, in the stationary frame 29 and 31.

and secured therein by means of the screws The grooved jamb 21 of thesash-carrying frame is preferably relatively thicker than the uprightjambs 19, in order to provide a shoulder 51 adapted to abut against theadjacent edge of thecross member 14 of the stationary frame, to providea limit stop for the inwardmovement of the sash-carrying frame. Byhinging the lower, inner portions of the side jambs 19 the lower, innersash may readily be removed from the sash-carrying frame, as shown inFigure 3 and as hcreinbefore described.

The upper sash may also be removed from the sash-carrying frame bydisconnecting it from the sash-balancing mechanism and lowering it tothe bottom of the frame, after which, when the hinged sections 25 areswung upwardly to the position shown in the dotted line in Figure 3, theouter sash may be tilted outwardly, as indicated by dotted lines in thesame figure after which it may be readily lifted clear of the sash- Vcarrying frame for cleansing or repairs.

The lower glazings or panes 52 of the storm sash 17 may be mounted in aframe 53 hinged to the frame of the storm sash, whereby they may beswung outwardly to an open position to admit fresh air into thebuilding. The storm sash may readily be removed from its seat after thesash-carrying frame has been removed from the stationary frame, asclearly shown in Figure 6. 'When the storm sash is mounted in thestationary frame and the sash-carrying frame also is mounted therein, asshown in Figure 4, the latter will engage the storm sash and securelyhold it in its seat, thereby preventing cold air or moisture fromentering the building between the storm sash and its supporting means. 7

It will also be noted that the storm sash may be mounted in thestationary frame and removed from the interior of the building, therebyeliminating the usual disadvantages encountered when hanging or mountingstorm windows and screens from theexterior of the building, as iscustomary with present window structures.

I claim as my invention:

1. The combination with a window structure comprising a frame adapted tobe se-.

frame.

a storm sash, and a sash-carrying frame demountable. in said stationaryframe and adapted to secure said storm sash therein.

' 3. A window structure comprising a stationary frame adapted to-besecured in a wall opening, a seat in said frame adapted to receive astorm sash, and a sash-carrying frame demountably supported in saidstationary frame and adapted to engage said storm sash to secure it insaid seat.

4:. A window structure comprising a stationary frame, casings secured tothe exteriorly disposed edges thereof, said casings inwardlyoverhanginsaid frame toprovide a seat for a storm sas 1 adapted to be mount edtherein from the interior of said frame.

5. A window structure comprising in combination, a stationary framehaving casings secured to the exteriorly dispose-d edges thereof inoverhanging relation thereto to provide a seat for the storm sash, asashcarrying frame demountably supported in said stationary frame andco-operating therewith to secure said sash in said seat, and means forsecuring said sash-carrying frame in said stationary frame.

6. A window structure comprising in combination a stationary frameadapted to be mounted in a wall opening, a sash-carrying framedemountably supported insaid stationaryframe, and said sash-carryingframe comprising grooved side jambs secured together at their upper endsonly.

7. A window structure comprising a stationary frame, an inwardly facingseat in said frame adapted to demountably receive a storm sash, asash-carrying frame also demountably received in said stationary frame,said sash-carrying frame comprising upright groove-d j ambs having agrooved head jamb secured thereto, a sash-balancing mechanism carried bysaid head j'amb, and said sashcarrying frame, including the sash andsashbalancing mechanism, being adaptedto be removed as a-unit from saidstationary frame to permit removal of the storm sash from i the interiorof a building. I

8. A Window structure comprising a stationary frame having an inwardlyfacing seat for a storm sash,a sash-carrying frame demountably supportedin'said stationary frame and adapted to secure a storm sash in said.seat, and a section of said sash-carry ing frame being hinged to permitthe removal of the sash without removing said sash-carrying frame fromsaid stationary In witness whereof, I have hereunto set my hand this21st day of May 1926.;

GEORGE M. WALKUP.

